Alaska Airlines is offering refunds and waiving change fees on flights booked for January 4 and 5 for travel to or from: Boston (BOS), New York JFK and LGA, Newark (EWR), and Philadelphia. There are also restrictions on unaccompanied minors and pets in the cabin and baggage.

American Airlines has a travel alert for travel on January 4 and 5 to or from about 14 cities in the northeast and for January 3 and 4 for about the same number of cities in the southeast.

Della Air Lines has travel alert info posted for the southeast, mid-Atlantic and northeast regions for a long list of cities. Refunds are offered for canceled flight or those delayed 90 minutes or more and change fees are waived.

Due to the severe winter weather, Delta will proactively cancel more than 400 mainline and Delta Connection regional flights 1/3-1/4, primarily at JFK & LGA as well as BOS. Additional cancellations are possible as the storm moves north. Learn more: https://t.co/ERc3HXhhaF

Frontier Airlines has a travel alert posted for flights through January 4 to or from: New York LaGuardia (LGA), New York Islip, (ISP), Philadelphia, PA (PHL), Trenton, NJ (TTN) and Providence, RI (PVD)

Due to winter weather through the Northeast Corridor & New England, we have enacted the following guidelines aimed at assisting customers scheduled to travel today, Wednesday, 1/3 and Thursday, 1/4.

Spring flowers are showing off their beauty in many parts of the country, but in the Midwest and Northeast United States there’s a blizzard on its way and that means thousands of canceled flights and big hassles for travelers trying to get from here to there.

Your airline may have already preemptively canceled your flight in advance of Winter Storm Stella – or may be about to.

Or your airline may be encouraging you to cancel your plans yourself – with the help of a change fee waiver – and fly another day.

Here are links to the current winter weather alerts from many airlines. In most cases you can make one change to your travel plans without incurring a change fee.

Winter storm Jupiter and assorted ice storms around the country are wreaking havoc with air travel this week and there are travel alerts galore from the airlines.

If you’ve got a trip planned, be sure to check your airlines’ website, sign up for travel alerts and subscribe to the Twitter feeds of your airline and of the airports you’re starting from – and heading for.

Here are some of the travel alerts posted as of Thursday evening, Jan. 12.

Most airlines will waive changes fees and the difference in the price of the ticket if you book new travel to or from the affected cities in the same cabin in the next week or so and/or refund the price of your ticket if you choose not to travel. Check your airlines’ website for details.

Alaska Airlines has an alert posted for travel to or from Omaha, Oklahoma City, Kansas City and St. Louis for January 13-15.

There are at least 17 cities affected American Airlines’ travel alert for January 15-16, including

Buffalo, New York (BUF)

Cedar Rapids, Iowa (CID)

Central Wisconsin, Wisconsin (CWA)

Des Moines, Iowa (DSM)

Dubuque, Iowa (DBQ)

Green Bay, Wisconsin (GRB)

Grand Rapids, Michigan (GRR)

Kansas City, Missouri (MCI)

La Crosse, Wisconsin (LSE)

Madison, Wisconsin (MSN)

Milwaukee, Wisconsin (MKE)

Minneapolis / St. Paul, Minnesota (MSP)

Omaha, Nebraska (OMA)

Rochester, Minnesota (RST)

Sioux City, Iowa (SUX)

Traverse City, Michigan (TVC)

Wichita, Kansas (ICT)

The travel alert for Delta Air Lines also covers 17 cities, for travel January 13-15:

JetBlue’s travel waiver covers Cleveland (CLE), Philadelphia (PHL), Pittsburgh (PIT) and the airports in the D.C. metro area for travel January 13-15.

More than 20 cities are affected by Southwest Airlines’ travel alert for flights scheduled between January 13 and 16 (dates vary by city) and United Airlines has a travel alert posted for flights scheduled January 13 -15 to for from these cities:

Amarillo, TX (AMA)

Charleston, WV (CRW)

Charlottesville, VA (CHO)

Cincinnati, OH (CVG)

Columbus, OH (CMH)

Dayton, OH (DAY)

Evansville, IN (EVV)

Indianapolis, IN (IND)

Kansas City, MO (MCI)

Lubbock, TX (LBB)

Oklahoma City, OK (OKC)

Paducah, KY (PAH)

Peoria, IL (PIA)

Springfield, IL (SPI)

Springfield, MO (SGF)

St. Louis, MO (STL)

Tulsa, OK (TUL)

Wichita, KS (ICT)

If you can rearrange your plans and stay out of the path of the storm and out of the airports that will be experiencing delays and cancellations, do it!

While airlines may be canceling flights, airports in Isaac’s path may be open, but under hurricane watch or warning. Before you head to the airport, be sure to check the airport’s website or Twitter feed for updates. Louis Armstrong New Orleans International Airport (MSY), for example, sent out alerts late Sunday night reminding travelers that the airport is not a hurricane evacuation site.